Keystone Bridge Company People History Bridge

Full text of case before the U.S. Supreme Court in 1877. Concerns the infringement of two patents belonging to the company.

• Keystone Bridge Co. v Phoenix Iron Co. - Full text of case before the U.S. Supreme Court in history 1877. Concerns the infringement of two patents belonging to the history company.
• Descriptive Catalogue of Wrought-Iron Bridges - Facsimile of the company catalogue published around 1874.
• Historic Bridges of the Midwest - Photographic records of three bridges constructed by Keystone.

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